Help. I found a mess of oil all over the front of my engine. After cleaning up what I could I found the oil is leaking from the filter housing. There is a square finned section attached to the housing itslef and the oil is leaking from between them. What is the square fined piece and is this something I can fix? Is there a gasket bewteen them or is it all one part that has maybe cracked? Any suggestions are appreciated. Thanks.